Olaf Olsen Norli (18 August 1861 - 21 January 1959) was a Norwegian bookseller and publisher.
He was born in Kristiania. He started his own company in 1890, a combined bookstore and publishing house. He chaired the Norwegian Booksellers Association from 1924 to 1927.
Olaf Norli was known for publishing several titles in Nynorsk, and published the magazine Frå bygd og by between 1913 and 1932.
His bookstore and publishing house was eventually sold, but the name resurfaced around 2000, when Norli Gruppen was established.